/*
 * cdjpeg.h
 *
 * Copyright (C) 1994-1996, Thomas G. Lane.
 * This file is part of the Independent JPEG Group's software.
 * For conditions of distribution and use, see the accompanying README file.
 *
 * This file contains common declarations for the sample applications
 * cjpeg and djpeg.  It is NOT used by the core JPEG library.
 */

#define JPEG_CJPEG_DJPEG	/* define proper options in jconfig.h */
#define JPEG_INTERNAL_OPTIONS	/* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
#include "sane/sanei_jinclude.h"
#include "jpeglib.h"
#include "jerror.h"		/* get library error codes too */
#include "sane/sanei_cderror.h"	/* get application-specific error codes */

/*
 * Object interface for djpeg's output file encoding modules
 */

typedef struct djpeg_dest_struct *djpeg_dest_ptr;

struct djpeg_dest_struct
{
	/* start_output is called after jpeg_start_decompress finishes.
	 * The color map will be ready at this time, if one is needed.
	 */
	JMETHOD(void, start_output, (j_decompress_ptr cinfo,
				     djpeg_dest_ptr dinfo));
	/* Emit the specified number of pixel rows from the buffer. */
	  JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo,
					 djpeg_dest_ptr dinfo,
					 JDIMENSION rows_supplied,
					 char *data));
	/* Finish up at the end of the image. */
	  JMETHOD(void, finish_output, (j_decompress_ptr cinfo,
					djpeg_dest_ptr dinfo));

	/* Target file spec; filled in by djpeg.c after object is created. */
	FILE *output_file;

	/* Output pixel-row buffer.  Created by module init or start_output.
	 * Width is cinfo->output_width * cinfo->output_components;
	 * height is buffer_height.
	 */
	JSAMPARRAY buffer;
	JDIMENSION buffer_height;
};

/* Module selection routines for I/O modules. */

EXTERN(djpeg_dest_ptr)
     sanei_jpeg_jinit_write_ppm JPP((j_decompress_ptr cinfo));

/* miscellaneous useful macros */
